iRC1021i magenta background

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  • magc
    Technician
    • Dec 2009
    • 30

    #1

    iRC1021i magenta background

    I`ve already replaced magenta cartridge for a new one. Nothing changed. I attache a sample of the faulty image.
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  • magc
    Technician
    • Dec 2009
    • 30

    #2
    Re: iRC1021i magenta background

    Does anybody know something about this failure??

    Comment

    • teckat
      Field Supervisor

      Site Contributor
      10,000+ Posts
      • Jan 2010
      • 16083

      #3
      Re: iRC1021i magenta background

      Originally posted by magc
      Does anybody know something about this failure??
      -------------------------------;
      Magenta background over the entire page.
      The problem may be caused by a missing connection to the HVT PCB.

      On this machine the drum unit has 2 contact points that receive charges on the left side. There is small square silver contact and a rectangular copper contact. They are visible in the image below. If there is no connection with the copper contact the unit will give a light background over the entire page including the blank area.
      The background will be the color of the drum that is missing the connection.



      The two drum contacts come in contact with spring loaded contact wires in the machine. They are visible in the image below. To check them, turn off the machine and unplug it, next check if the wire contacts are spring loaded and make sure they are not bent or deformed. Compare them with another set in the machine.

      The back side of the spring pins in the image above in turn contact the HVT PCB.

      The coiled springs on the image below make contact with the HVT PCB.



      In this case the lower left spring was knocked out of place by a technician when he reinstalled the HVT PCB.


      The spring was in place and visible on the inside of the machine but yet was not making contact with the contact point on the HVT PCB. The tech rechecked the previous techs work and found the coil spring not in it's correct position. The problem was resolved by simply reinstalling the contact spring into the correct position and then carefully reinstalling the HVT. Trouble shooting was difficult because the contact spring was visible and in place on the inside of the machine but not in the correct position under the HVT PCB.
      **Knowledge is time consuming, exhausting and costly for a trained Tech.**

      Comment

      • teckat
        Field Supervisor

        Site Contributor
        10,000+ Posts
        • Jan 2010
        • 16083

        #4
        Re: iRC1021i magenta background

        Originally posted by magc
        I`ve already replaced magenta cartridge for a new one. Nothing changed. I attache a sample of the faulty image.

        to add

        Prints and Copies have a Magenta Background
        This issue can occur if the Bias Spring for the Magenta Cartridge has fallen out of place. Check the Bias Springs and make sure that they are seated correctly.

        **Knowledge is time consuming, exhausting and costly for a trained Tech.**

        Comment

        • magc
          Technician
          • Dec 2009
          • 30

          #5
          Re: iRC1021i magenta background

          Thanks. I'll check it.

          Comment

          • magc
            Technician
            • Dec 2009
            • 30

            #6
            Re: iRC1021i magenta background

            I`ve checked those springs but everything is ok. I've changed the HVT PCB assembly and ETB unit but nothing new happened. I don't know what's the problem. Please someone who knows about this failure.

            Thanks a million!!

            Comment

            • teckat
              Field Supervisor

              Site Contributor
              10,000+ Posts
              • Jan 2010
              • 16083

              #7
              Re: iRC1021i magenta background

              Originally posted by magc
              I`ve checked those springs but everything is ok. I've changed the HVT PCB assembly and ETB unit but nothing new happened. I don't know what's the problem. Please someone who knows about this failure.

              Thanks a million!!
              Are u using a OEM PRODUCT for Toner Supply
              **Knowledge is time consuming, exhausting and costly for a trained Tech.**

              Comment

              • magc
                Technician
                • Dec 2009
                • 30

                #8
                Re: iRC1021i magenta background

                No it's original toner cartridge from Canon

                Comment

                • teckat
                  Field Supervisor

                  Site Contributor
                  10,000+ Posts
                  • Jan 2010
                  • 16083

                  #9
                  Re: iRC1021i magenta background

                  Originally posted by magc
                  No it's original toner cartridge from Canon
                  OEM means CANON

                  Note--Just because the box says CANON --It does not guarantee the product to be an official canon item
                  **Knowledge is time consuming, exhausting and costly for a trained Tech.**

                  Comment

                  • magc
                    Technician
                    • Dec 2009
                    • 30

                    #10
                    Re: iRC1021i magenta background

                    It's 100% original Canon toner

                    Comment

                    • teckat
                      Field Supervisor

                      Site Contributor
                      10,000+ Posts
                      • Jan 2010
                      • 16083

                      #11
                      Re: iRC1021i magenta background

                      Originally posted by magc
                      It's 100% original Canon toner
                      -----------------------


                      looks like a BIAS issue/ there is a contact point issue I believe

                      have u tried another Magenta Drum Cartridge ??

                      did this issue appear before drum change

                      has Software for the machine been re-flashed / upgraded to the latest version.
                      **Knowledge is time consuming, exhausting and costly for a trained Tech.**

                      Comment

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